[en] This publication presents the French case study of the European ENCI-LowCarb research project: Engaging Civil Society in Low Carbon scenarios. The core activity of this project was the development of a methodology for the transparent integration of stakeholders' contributions in the scenario design process to enhance the stakeholders' acceptance of the resulting low carbon pathways. This attempt at integrating acceptability in scenario-making constitutes an important step to distinguish what is technically and economically feasible from what is acceptable. Today, a wide range of published scenarios emphasize the fact that they are built on public consultations or stakeholders' contributions. However, transparency is lacking concerning the methodology relative to how contributions were taken into account and translated into assumptions that can be used by the modeling tool. The project ENCI-LowCarb aimed at exploring this scientific gap. Energy scenarios outline possible low-carbon futures built around assumptions on fossil fuels prices evolution, technological choices and the mechanisms of energy demand and supply, among others. Scenarios are influential tools in political decision-making processes since they shed light on the long-term impacts of today's investment decisions, especially regarding infrastructures. This is why it is crucial that these pathways derive from discussions with main stakeholders. In this report, the French project team (CIRED and RAC-F) has the pleasure to present energy scenarios for France which derive from a collaborative scenario design process including the participation of a wide range of French stakeholders (civil society organizations including trade unions and non-governmental organizations, private companies, banks, statewide and local authorities). Participating stakeholders were asked to define or select acceptable CO₂ emissions mitigation measures. Their contributions were implemented in the technico-economic model Imaclim-R France to create a scenario that is economically and technically consistent as well as acceptable by stakeholders. This methodology allowed an assessment of the level of achievable emissions reductions with stakeholders' 'acceptable' measures. This project report is organized as follows: part 2 presents the methodology of the collaborative scenario design process in detail, part 3 describes the low carbon scenario - the outcome of the stakeholder discussions. In part 4, other drivers of CO₂ emissions and additional measures are explored. Chapter 5 introduces additional sensitivity analysis. Part 6 concludes